弟子: disciple, follower...
喉咙: throat, larynx...
直线: straight line, sharply (rise or fall)...
红润: ruddy, rosy, florid...
研究生: graduate student, postgraduate student, research student...
大学生: university student, college student...
机关: mechanism, gear, machine-operated, office, agency, organ, organization, establishment, institution, body, stratagem, scheme, intrigue, plot, trick...
一刹那: a moment, an instant, in a flash...
车速: vehicle speed...
看上去: it would appear, it seems (that)...
